| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.4380 INCHES NOMINAL |
| FASTENER LENGTH | 0.8760 INCHES NOMINAL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 NATIONAL STD SINGLE MATERIAL RESPONSE OR |
| AMS5732 NATIONAL STD SINGLE MATERIAL RESPONSE OR |
| AMS5737 NATIONAL STD SINGLE MATERIAL RESPONSE OR |
| AMS5853 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| HEAD STYLE | DISHED HEXAGON |
| HEAD HEIGHT | 0.1560 INCHES MINIMUM AND |
| 0.1710 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.4920 INCHES MINIMUM AND |
| 0.5020 INCHES MAXIMUM |
| GRIP LENGTH | 0.4280 INCHES MINIMUM AND |
| 0.4480 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3115 INCHES MINIMUM AND |
| 0.3120 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, HEX HEAD, CLOSE TOLERANCE, A286 CRES, SHORT THREAD, REDUCED MAJOR THREAD., 160 KSI FTU |